ArgumentValidatorTest.php

<?php

namespace Drupal\Tests\views_ui\Functional;

use Drupal\views\Views;

/**
 * Tests the Argument validator through the UI.
 *
 * @group views_ui
 */
class ArgumentValidatorTest extends UITestBase {
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_argument',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests the 'Specify validation criteria' checkbox functionality.
     */
    public function testSpecifyValidation() {
        // Specify a validation based on Node for the 'id' argument on the default
        // display and assert that this works.
        $this->saveArgumentHandlerWithValidationOptions(TRUE);
        $view = Views::getView('test_argument');
        $handler = $view->getHandler('default', 'argument', 'id');
        $this->assertTrue($handler['specify_validation'], 'Validation for this argument has been turned on.');
        $this->assertEquals('entity:node', $handler['validate']['type'], 'Validation for the argument is based on the node.');
        // Uncheck the 'Specify validation criteria' checkbox and expect the
        // validation type to be reset back to 'none'.
        $this->saveArgumentHandlerWithValidationOptions(FALSE);
        $view = Views::getView('test_argument');
        $handler = $view->getHandler('default', 'argument', 'id');
        $this->assertFalse($handler['specify_validation'], 'Validation for this argument has been turned off.');
        $this->assertEquals('none', $handler['validate']['type'], 'Validation for the argument has been reverted to Basic Validation.');
    }
    
    /**
     * Saves the test_argument view with changes made to the argument handler.
     *
     * @param bool $specify_validation
     *   The form validation.
     */
    protected function saveArgumentHandlerWithValidationOptions($specify_validation) {
        $options = [
            'options[validate][type]' => 'entity---node',
            'options[specify_validation]' => $specify_validation,
        ];
        $this->drupalGet('admin/structure/views/nojs/handler/test_argument/default/argument/id');
        $this->submitForm($options, 'Apply');
        $this->drupalGet('admin/structure/views/view/test_argument');
        $this->submitForm([], 'Save');
    }

}